Digital Research was at the
forefront of pioneering Virtual Operating Systems in the early 1980s
with Concurrent DOS, REAL/32, and Flex/OS, all of which became fully available
commercial products. Flex/OS supported full graphics and was the most
advanced OS developed by DR. In 2007, Virtual Operating Systems are
at the forefront of the most exciting news in the computer industry.
Citrix is a major
player with its MetaFrame software bring in about $1 Billion per
year enabling virtualization of Windows based on licensed OS code from
Microsoft in conjunction with proprietary
Citrix code.
VMware made major news in mid-August
2007 by going public and becoming an almost $20 billion company overnight
with its Virtual OS implementation to enable running multiple operating systems
as a subset of its proprietary OS implementation. Less well known a
player, XenSource was acquired by
Citrix Systems
for $500 million in mid-August 2007, and offers a unique approach to
OS virtualization. Microsoft
is also presently development various Virtual OS software. Certain
SCO UNIX versions support Virtual OS operations.
The Open Source (free) Virtual OS manager
QEMU enables running multiple
Operating Systems including Windows and DOS and emulates a complete computer
system including processor and peripherals and fully supports WINE
(Sun MS Windows emulation) and DOSEMU for
running DOS programs along with other operating systems such as UNIX and
Linux. Digital Research Operating Systems can be run currently within a Virtual
OS which makes watching these Virtual OS developments of great interest.
IBM, of course, created Virtual Computing
with its VM software for their 360 mainframes in the 1960s.
IBM's current advanced version of Virtual
OS software is zVM. No matter how much changes in computing, it all
comes back to IBM -- the greatest pioneer
ever in computing.

Dorothy McEwen Memorial Service
at The Holman Ranch February 5, 2005 2:00--4:00
pm

Dorothy McEwen, 61, passed
away on January 31st, 2005 at her home with her family by her side after
a long battle with brain cancer. She was born on March 3rd, 1943, in Seattle,
Washington, the daughter of Marion Strout and Gene McEwen.

In 1963, she married her high
school sweetheart, Gary Kildall. She attended
the University of Washington after high school. After a few years, she stopped
and for the next several years, she worked to support her husband as he went
to the same university. In 1969, Gary and Dorothy moved to the Monterey
Peninsula. She gave birth to her son, Scott, in 1969 and to her daughter,
Kristin, in 1971.

In 1974, she co-founded Digital
Research, Inc., with her husband, Dr. Gary A.
Kildall. Her husband had spent years developing
CP/M, the first commercial operating system
for personal computers and Dorothy was instrumental in bringing it to market.
Their company sold and promoted the software, which gave life to a fledgling
computer industry. With Dorothy in charge of the marketing and
Gary working on the software code, Digital
Research quickly grew in size. With her knack for creating a welcoming community,
the employees of Digital Research were treated as an extended family.

Gary
and Dorothy's efforts were critical in bringing computers to the home and
widespread business use. In 1983, she and Gary
permanently separated and later were divorced. In 1989, she bought the then
dilapidated Holman Ranch on a 400-acre
plot of land and relocated to
Carmel Valley. Over
the course of 20 years, she rebuilt The
Holman Ranch, transforming it into a beautiful site for weddings, corporate
parties, photo shoots and charity events. She also built a state-of-the-art
equestrian center with facilities for training, riding and boarding. With
gorgeous landscaping and restored Spanish-style architecture, she dubbed
the The Holman Ranch, a "heaven
on earth" for many to enjoy.

At
The Holman Ranch, she hosted numerous
fundraisers, including the "Great Bowls of Fire" Chili Cook-Off and the Carmel
Valley Mother's Day Brunch. In 1998 she was honored as Woman of the Year
of the Monterey Peninsula by Quota
International. In 1999, she started the Senior's Program, further spreading
joy to her community.

Dorothy was an avid traveler,
a collector of antiques and a proud mother. She always maintained a good
sense of humor even in adverse circumstances. She was well-loved by family
and many friends. She is survived by her son, Scott Kildall, her daughter,
Kristin Kildall, her brother, Richard Strout, and her mother, Marion Strout.

Remembrances may be sent to
The Holman Ranch, P.O. Box 149,
Carmel Valley, CA 93923. A memorial service will be held from 2-4pm on Saturday,
February 5th at The Holman Ranch,
60 Holman Road, Carmel Valley, CA 93923 and you may call the Ranch at (831)
659-2640 or send email to
Director@HolmanRanch.com for
further information. [Please note that as of 2006 the Kildall family sold
the Holman Ranch and that this address and contact information is no
longer good for current contact.]

All of the products above
would not have been possible without the valiant and brilliant work of the
founder of Digital Research, the late
Dr. Gary A. Kildall. On July 11,
1994, Gary Kildall passed away following a blow to his head at the Franklin
Street Bar & Grill in Monterey, California on July 8, 1994. At the time
of his death, Gary was 52. He was born in 1942, a few years before the
first electronic computer even existed, and his software made possible PC
computing as we know it at the turn of the 20th century. He is survived
by a son, Scott, and a daughter, Kristin. His former wife, Dorothy McEwen
(Kildall), with whom Gary co-founded Digital Research, Inc. in 1974, passed
away on January 31, 2005.

Gary created the first Operating System for the microprocessor,
CP/M. The most advanced current version
of CP/M as of 1999 was IMS Ltd. REAL/32. CP/M also serves as the basis
of all modern DOS versions including the outstanding Caldera DR DOS and other
derivitaves including PC-DOS from IBM, and MS-DOS from Microsoft, whose
position in the computer industry is based on its unauthorized 1981 "cloning"of
Dr. Gary Kildall's Digital Research CP/M, which gave birth to the IBM PC
standard upon which
MicrosoftMS-DOS, Windows CE, Windows 95, Windows
98, Windows 2000, Windows XP, Windows Server 2003, Windows Vista, and Windows
Server 2008 are based today.

All of us who knew and loved Gary are dedicated to continuing his work, his
dreams, and his collegial sharing and caring about people, while working
to open new frontiers in software research and development for the benefit
of all. The Digital Research family remains strong. Gary forever changed
computing by laying the foundation for popular PC operating systems.
Most importantly, Gary was the greatest teacher any of us who knew him and
his work could ever have had.